#100C41#100C41

#100C41 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.5% C 0.095 H 277.2°. Best body text is #FFFFFF at 18.25:1 contrast (WCAG AA passes).

Color values

HEX	#100C41
RGB	rgb(16, 12, 65)
HSL	hsl(245, 69%, 15%)
HSV	hsv(245, 82%, 25%)
CMYK	cmyk(75.4%, 81.5%, 0%, 74.5%)
CIE-LAB	lab(6.82, 21.20, -32.65)
CIE-LCH	lch(6.82, 38.93, 303.00°)
OKLab	oklab(20.54% 0.012 -0.0946)
OKLCH	oklch(20.54% 0.095 277.2)
XYZ	xyz(1.2990, 0.7546, 5.0772)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C41 #3D410C

analogous

#0C2341 #100C41 #2A0C41

triadic

#100C41 #41100C #0C4110

tetradic

#100C41 #410C23 #3D410C #0C412A

square

#100C41 #410C23 #3D410C #0C412A

split-complementary

#100C41 #412A0C #23410C

monochromatic

#06051A #06051A #100C41 #1D1675 #291FA8

Accessibility & contrast

On white

18.25

#100C41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#100C41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C41

18.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C41	#FFFFFF	#000000	##FFFFFF
##100C41	1.00	18.25	1.15	18.25
#FFFFFF	18.25	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001743

Deuteranopia (green-blind)

#001340

Tritanopia (blue-blind)

#001B25

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #100c41;
/* rgb */ color: rgb(16, 12, 65);
/* oklch */ color: oklch(20.5% 0.095 277.2);

Tailwind

colors: {
  custom: {
    50: '#574b76',
    500: '#100c41',
    950: '#000000',
  },
}

SCSS

$custom: #100c41;
$custom-light: #574b76;
$custom-dark: #000000;

JSON

{
  "hex": "#100c41",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 65
  },
  "hsl": {
    "h": 244.528,
    "s": 68.831,
    "l": 15.098
  },
  "oklch": {
    "l": 0.20535,
    "c": 0.09537,
    "h": 277.2
  },
  "luminance": 0.00755
}

Semantic roles & 50–950 ramp

primary

#100C41

secondary

#777D2C

accent

#EC3CDE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100C41

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →